/*******************************************************************************
 * Copyright 2014 United States Government as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package gov.nasa.ensemble.core.model.plan.impl;

import gov.nasa.ensemble.common.extension.BasicExtensionRegistry;
import gov.nasa.ensemble.core.model.plan.IPlanElementMemberFactory;

import java.util.Comparator;

public class PlanElementMemberFactoryRegistry extends BasicExtensionRegistry<IPlanElementMemberFactory> implements Comparator<IPlanElementMemberFactory> {
	
	public PlanElementMemberFactoryRegistry() {
		super(IPlanElementMemberFactory.class, "gov.nasa.ensemble.core.model.plan.PlanElementMemberFactory");
		setComparator(this);
	}

	public int compare(IPlanElementMemberFactory o1, IPlanElementMemberFactory o2) {
		int result = o1.getSortKey() - o2.getSortKey();
		if (result == 0) {
			result = o1.getKey().compareTo(o2.getKey());
		}
		return result;
	}

}
